1 /* $NetBSD: cd9660_strings.c,v 1.4 2007/01/16 17:32:05 hubertf Exp $ */
2
3 /*-
4 * SPDX-License-Identifier: BSD-2-Clause
5 *
6 * Copyright (c) 2005 Daniel Watt, Walter Deignan, Ryan Gabrys, Alan
7 * Perez-Rathke and Ram Vedam. All rights reserved.
8 *
9 * This code was written by Daniel Watt, Walter Deignan, Ryan Gabrys,
10 * Alan Perez-Rathke and Ram Vedam.
11 *
12 * Redistribution and use in source and binary forms, with or
13 * without modification, are permitted provided that the following
14 * conditions are met:
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above
18 * copyright notice, this list of conditions and the following
19 * disclaimer in the documentation and/or other materials provided
20 * with the distribution.
21 *
22 * THIS SOFTWARE IS PROVIDED BY DANIEL WATT, WALTER DEIGNAN, RYAN
23 * GABRYS, ALAN PEREZ-RATHKE AND RAM VEDAM ``AS IS'' AND ANY EXPRESS OR
24 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
25 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
26 * DISCLAIMED. IN NO EVENT SHALL DANIEL WATT, WALTER DEIGNAN, RYAN
27 * GABRYS, ALAN PEREZ-RATHKE AND RAM VEDAM BE LIABLE FOR ANY DIRECT, INDIRECT,
28 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
29 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
30 * USE,DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
31 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
32 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
34 * OF SUCH DAMAGE.
35 */
36
37 #include <sys/mount.h>
38
39 #include <sys/cdefs.h>
40 #include <sys/param.h>
41 #include <ctype.h>
42
43 #include "makefs.h"
44 #include "cd9660.h"
45
46
47 void
cd9660_uppercase_characters(char * str,size_t len)48 cd9660_uppercase_characters(char *str, size_t len)
49 {
50 size_t p;
51
52 for (p = 0; p < len; p++) {
53 if (islower((unsigned char)str[p]) )
54 str[p] -= 32;
55 }
56 }
57
58 static inline int
cd9660_is_d_char(char c)59 cd9660_is_d_char(char c)
60 {
61 return (isupper((unsigned char)c)
62 || c == '_'
63 || (c >= '0' && c <= '9'));
64 }
65
66 static inline int
cd9660_is_a_char(char c)67 cd9660_is_a_char(char c)
68 {
69 return (isupper((unsigned char)c)
70 || c == '_'
71 || (c >= '%' && c <= '?')
72 || (c >= ' ' && c <= '\"'));
73 }
74
75 /*
76 * Test a string to see if it is composed of valid a characters
77 * @param const char* The string to test
78 * @returns int 1 if valid, 2 if valid if characters are converted to
79 * upper case, 0 otherwise
80 */
81 int
cd9660_valid_a_chars(const char * str)82 cd9660_valid_a_chars(const char *str)
83 {
84 const char *c = str;
85 int upperFound = 0;
86
87 while ((*c) != '\0') {
88 if (!(cd9660_is_a_char(*c))) {
89 if (islower((unsigned char)*c) )
90 upperFound = 1;
91 else
92 return 0;
93 }
94 c++;
95 }
96 return upperFound + 1;
97 }
98
99 /*
100 * Test a string to see if it is composed of valid d characters
101 * @param const char* The string to test
102 * @returns int 1 if valid, 2 if valid if characters are converted to
103 * upper case, 0 otherwise
104 */
105 int
cd9660_valid_d_chars(const char * str)106 cd9660_valid_d_chars(const char *str)
107 {
108 const char *c=str;
109 int upperFound = 0;
110
111 while ((*c) != '\0') {
112 if (!(cd9660_is_d_char(*c))) {
113 if (islower((unsigned char)*c) )
114 upperFound = 1;
115 else
116 return 0;
117 }
118 c++;
119 }
120 return upperFound + 1;
121 }
122